Professional IC Distribution & Technical Solutions

The LT4250L is a Hot Swap Controller manufactured by Linear Technology (now part of Analog Devices). Below are the factual specifications, descriptions, and features based on the Manufactor Datasheet:

Manufacturer:

• Linear Technology (now part of Analog Devices)

Part Number:

• LT4250L

Description:

The LT4250L is a negative voltage Hot Swap controller designed to safely insert and remove circuit cards from live backplanes. It provides inrush current control, fault protection, and power supply monitoring for -48V systems.

Key Features:

1. Wide Operating Voltage Range:

• -10V to -80V input range.

2. Programmable Fault Timer:

• Adjustable overload timer using an external capacitor.

3. Adjustable Current Limit:

• Uses an external sense resistor for precise current limiting.

4. Undervoltage Lockout (UVLO):

• Ensures proper operation only within the valid supply range.

5. Power Good Output:

• Provides a status signal indicating valid supply conditions.

6. Circuit Breaker Function:

• Fast response to short-circuit conditions.

7. Controlled Turn-On:

• Prevents excessive inrush current during startup.

8. Thermal Protection:

• Shuts down the circuit in case of excessive temperature.

9. Low Quiescent Current:

• Minimizes power consumption in standby mode.

Applications:

• -48V Telecom and Networking Systems
• Hot Swap Power Supplies
• Redundant Power Systems
• Industrial and Automotive Systems

Package:

• Available in SO-8 and PDIP-8 packages.

This information is strictly based on the manufacturer's datasheet and technical documentation.